3M Speedglas Fresh-Air III Supplied Air System with V-100 Vortex Air-Cooling valve and Speedglas Welding Helmet 9100-Air, 25-5702-20SW with SideWindows and Auto-Darkening Filter 9100X, Shades 5, 8-13 by 3M

商品説明

Auto darkening filter (ADF) transitions from light to dark shade in approximately .1 milliseconds after welding arc is detected;Lightweight belt-mounted Supplied Air Respiratory Protection System for cooler, more comfortable breathing on the job;V-100 Vortex air-cooling valve permits welders to lower temperature of air entering the headpiece by up to 50F (28C);Helmet helps provide protection from ultraviolet (UV) and infrared (IR) radiation;System offers respiratory Assigned Protection Factor of 25 (APF 25)